spawn-bench.c

#include <spawn.h>
#include <assert.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <stdio.h>
extern char **environ;

int main(int argc, char **argv) {
    if (!argv[1]) {
        fprintf(stderr, "usage: spawn-bench <command> [args...]\n");
        return 1;
    }
    char *path = argv[1];
    for (int i = 0; i < 1000; i++) {
        pid_t pid;
        assert(!posix_spawn(&pid, argv[1], NULL, NULL, argv + 1, environ));
        int st;
        assert(pid == waitpid(pid, &st, 0));
        assert(WIFEXITED(st));
        assert(WEXITSTATUS(st) == 0);
    }

}